tree e185a2b7e0162d5d64f0c34bcc505ef962a918d7
parent 3eec3fe647165bec646265434900b36e679acddc
author philwo <philwo@google.com> 1535985026 -0700
committer Copybara-Service <copybara-piper@google.com> 1535985125 -0700

Add flag --incompatible_symlinked_sandbox_expands_tree_artifacts_in_runfiles_tree.

In the future, Bazel will expand tree artifacts in runfiles, too, which causes the sandbox to link each file individually into the sandbox directory, instead of symlinking
the entire directory.

In #5971 it was shown that this might have user-visible impact, so the flag provides a mechanism to try it out before Bazel turns it on by default and also to temporarily revert to the previous behavior during the migration window.

The flag will be removed once migration has been completed.

RELNOTES: In the future, Bazel will expand tree artifacts in runfiles, too, which causes the sandbox to link each file individually into the sandbox directory, instead of symlinking the entire directory. In this release, the behavior is not enabled by default yet. Please try it out via --incompatible_symlinked_sandbox_expands_tree_artifacts_in_runfiles_tree and let us know if it causes issues. If everything looks good, this behavior will become the default in a following release.
PiperOrigin-RevId: 211354053